Breakers and Contactors

PPM Power offers two technologies of contactors and breakers. Solid state technology offers ultra fast reaction times to limit fault currents and very large switching lifetimes. The mechanical breakers offer galvanic isolation and serviceable contacts for long life.

Contactors

DC and AC contactors from Schaltbau are available up to 4800 V and 2000 A ratings. They have an open air design with an arc suppression system to deliver repeatable, safe switching. This design reduces catastrophic failure risks and allows contacts to be inspected and serviced.

Contactor configurations can be normally open (NO) where the contact closes when the switch is actuated, or normally closed (NC) where the contact opens when the switch is actuated. Some contactors also use changeover (CO) contacts which have three connections, allowing a choice between two power sources.

The table below can be used to select contactors based on voltage, application and configuration.

Series	Type of Voltage	Contacts, Configuration	Voltage	Current	New Mobility	New Energy	Industry	Railway
C300	DC, AC	1x, NO	up to 1500 V	500 A	Y	Y	Y
C303	DC	2x NO	up to 1500 V	350 A	Y	Y
C310	DC, AC	1x, NO	up to 1500 V	150 - 500 A	Y	Y	Y
C320	DC, AC	1x, NO	up to 1500 V	1000 A	Y	Y	Y
C360	DC, AC	1x, NO	up to 1500 V	150 - 500 A				Y
C801	DC	1x, NO	up to 1000 V	250 A	Y	Y	Y
C193	DC, AC	1x, NO	up to 1500 V	50 A		Y	Y	Y
C195	DC, AC	1x, NO/CO	up to 1500 V	250 - 320 A		Y	Y	Y
C294	DC	2x, NO	up to 1500 V	40 A		Y	Y	Y
C295	DC, AC	2x, NO	up to 1500 V	120 A		Y	Y	Y
CL Series	DC, AC	1x - 3x, NO	up to 1500 V	200 - 250 A				Y
CH1130	DC, AC	1x, NO	up to 3000 V	200 A			Y	Y
C152-159	DC, AC	1x - 4x, NO/NC	up to 1500 V	200 - 500 A			Y	Y
CF Series	DC, AC	1x - 3x, NO/NC	up to 3000 V	200 - 300 A	Y	Y	Y	Y
CT Series	DC, AC	1x / 2x, NO	up to 3000 V	400 - 1100 A	Y	Y	Y	Y
CA Series	AC	3x, NO	up to 3000 V	350 - 800 A		Y	Y
CPP Series	DC, AC	1x, NO/NC	up to 1500 V	120 - 200 A	Y	Y	Y	Y
CP Series	DC, AC	1x, NO/NC/CO	up to 3000 V	600 - 2000 A	Y	Y	Y	Y
CU Series	DC	2x, NO	up to 1500 V	1000 A		Y	Y
C110B	DC	1x, NO	up to 200 V	60 - 240 A	Y	Y	Y
AFS	DC, AC	1x / 2x, NO/NC/CO	up to 200 V	100 - 250 A	Y	Y	Y
C137-164	DC, AC	1x, NO	up to 200 V	40 - 140 A			Y	Y
CS115	DC, AC	4x, NO/NC	up to 1500 V	20 A			Y	Y

Download the New Mobility and New Energy brochures below:

Solid State Breakers

Solid state breakers, or surge suppression devices as they are more accurately described, provide a response to fault conditions in as little as 10 μS. For DC applications this reduces the fault current making it possible to avoid over sizing components in the system. For AC applications, fast switching can help avoid brownout conditions and the fact they can switch under load many hundreds of thousands of times makes them suitable for situations where mechanical switches would be uneconomical.

Astrol AC Breakers HV Switches Astrol DC Breaker

	Description	Voltage	Max nominal current
Solid-state DC breakers	Short-circuit current protection	1kV - 1.5 kV	200 A - 5000 A
Solid-state AC breakers	Short-circuit current protection	Typically 6.6, 11 0r 33 kV	Custom - Contact PPM